Method of restoring arsenic-contaminated soil using alkaline-ultrasonic washing and magnetic separation
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United States of America Patent
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Aug 14, 2018
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Apr 13, 2017
app pub date -
Jan 12, 2016
filing date -
Oct 8, 2015
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Provided is a method of restoring arsenic-contaminated soil. In the present invention, arsenic may be easily separated from soil particles by washing the arsenic-contaminated soil by using a basic solution and simultaneously irradiating the soil with ultrasonic waves. Also, since iron oxide and manganese oxide are exposed to the basic solution by dissolving a portion of the surface of a silicate mineral using the basic solution, a residual form of arsenic may be removed.
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